Project Overview

The Montana Department of Transportation is improving approximately 7 ½ miles of I 15 near Wolf Creek. The project area begins 5 miles south of Wolf Creek and extends north to the Augusta Interchange.

Project Map

The project will rehabilitate the roadway, update existing guardrail and concrete barriers to modern standards, and will upgrade storm drainage in the town of Wolf Creek.

Planned improvements include:

  • Removing and replacing approximately 2 feet of degraded roadway material on I 15 and resurfacing adjacent ramps, crossroads, and pullouts.
  • Upgrading concrete barrier rails, metal guardrail and signage.
  • Adding concrete barrier delineation (high visibility reflective strips) on inside curves.
  • Replacing right-of-way fencing and cattle guards as needed.
  • Adding new pavement markings.
  • Lining and repairing I 15 culverts.
  • Improved erosion control features.
  • Storm drain upgrades in the town of Wolf Creek.
  • Updating curb ramps on Walsh Street between Main Street and Recreation Road.

Why is the project needed?

MDT identified this stretch of interstate as being worn down and in need of repairs. The purpose of this project is to rehabilitate the existing surface to extend the life of the roadway, provide a smooth driving surface, and provide better signage and markings denoting the roadway. The project will also provide upgraded roadside barriers and reduce issues that require regular maintenance within the corridor. The upgraded signage and roadway markers were included as part of this project to improve and enhance safety along this corridor.

What to expect during construction

Construction is anticipated to begin in spring 2023 and is expected to take 3 years to complete


Interstate 15

  • Traffic will be reduced to one lane in each direction.
  • Both north and southbound traffic will travel on the same side of I 15.
  • Crossover traffic patterns will be in place throughout construction.
  • Speed limits will be reduced.
  • A 12-foot width restriction will be in place (visit for the most up-to-date information.)
  • Access to Wolf Creek and Augusta Interchange on- and off-ramps will be maintained.
  • The work zone will be 8 miles in length.

Stay Informed During Construction

MDT will notify the public about traffic impacts and work activities through the project website, local media, mailings, social media, and email and text notifications during construction.

Current construction information and road conditions can be found on the MDT Travel Info App.

UPN 7617000